I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
woks wogs wacks wakes wauks weeks wekas wicks wackes wackos whacks whackos wags wigs whigs
books hooks cooks gooks kooks looks nooks rooks sooks zooks woks chooks shooks yoks